A coffee brush is a wide, rounded tool that has many small bristles. It's probably best known as a "mild" or "non-sharp" coffee grinders. They are great for taking out oils and crevices from the coffee grounds. For those of you who have ever bought a store brand grinder, or one that is more expensive, you will find that they all use a similar form of brush. It's not hard to see why - the grooves and indentations make it easy to get into the crevices of the coffee grounds. A more expensive model will often have larger, more expensive bristles.
What makes the difference between the two types of brushes is the construction of their handle. Since coffee machines need to be held horizontally, the vertical type of brush is used by most. This is the type of brush that most coffee makers use, even though it does tend to give coffee makers a little more wear and tear.
A coffee cleaning brush can come in many shapes, styles, and sizes. They are generally made of plastic (usually, but not always, made of stainless steel), sometimes wood (only in very few cases), and in some cases, both plastic and wood are used. The most common materials are steel and wood.
Some coffee machines have a cleaning brush which is separate from the main body of the machine. This is a useful feature if your coffee machines make use of a piston, because the brush can be attached to the piston and work alongside it. Cleaning brushes on piston coffee machines tend to be a little bit stiffer than those attached to the machines (because when you are pushing the plunger back and forth, you are applying pressure to the brush bristles as well). The advantage of this is that you can apply more pressure to these, and they tend to last longer than those on other coffee machines. Of course, the opposite is also true - if you do not want to apply too much pressure, then you should probably go with one of the separate brushes.
The coffee grinder brush is another important component of the coffee grinders. The reason why you should get a good one is that the grinder will apply the coffee much better if you use a brush with long enough teeth. The longer the teeth on the brush, the more thoroughly the grounds will be ground. Just keep in mind that a good quality brush will cost more than the others - so check the price first and try to get the best that you can afford. You definitely need one of these to ensure that your coffee grounds are as ground up as possible.
Another useful feature of these brushes is the ability to lock in the precise amount of water or coffee grinds you want to use for each cup of coffee. Some people may even choose to use different levels of water based upon how strong of a coffee drinker they would like to be. However, there are those who would prefer not to touch the water with their fingers at all, just using the mr. brush to accomplish this goal. Of course, you can always just set the mr. brush to the desired level of water based upon what you prefer. In any case, these brushes are truly a helpful piece of equipment.